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annotate src/video/nanox/SDL_nximage.c @ 4066:58a5055da431 SDL-1.2

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More improvements for bug #373 Show the SDL cursor in the window and the arrow cursor outside the window. This is also supposed to show the SDL cursor when activated, but that code isn't working yet...
author Sam Lantinga <slouken@libsdl.org>
date Sat, 14 Jul 2007 08:27:06 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4 Copyright (C) 2001 Hsieh-Fu Tsai
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5 Copyright (C) 2002 Greg Haerr <greg@censoft.com>
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6
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7 This library is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU Library General Public
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9 License as published by the Free Software Foundation; either
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10 version 2 of the License, or (at your option) any later version.
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11
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12 This library is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 Library General Public License for more details.
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16
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17 You should have received a copy of the GNU Library General Public
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18 License along with this library; if not, write to the Free
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19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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21 Sam Lantinga
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22 slouken@libsdl.org
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23
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24 Hsieh-Fu Tsai
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25 clare@setabox.com
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26 */
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27 #include "SDL_config.h"
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29 #include "SDL_nximage_c.h"
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31 void NX_NormalUpdate (_THIS, int numrects, SDL_Rect * rects)
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32 {
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33 int i, j, xinc, yinc, destinc, rowinc ;
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34 int x, y, w, h ;
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35 unsigned char * src = NULL, * dest = NULL ;
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36
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37 Dprintf ("enter NX_NormalUpdate\n") ;
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38
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39 /* These are the values for the incoming image */
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40 xinc = this -> screen -> format -> BytesPerPixel ;
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41 yinc = this -> screen -> pitch ;
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42
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43 for (i = 0; i < numrects; ++ i) {
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44 x = rects [i].x, y = rects [i].y ;
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45 w = rects [i].w, h = rects [i].h ;
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46 src = SDL_Image + y * yinc + x * xinc ;
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47 #ifdef ENABLE_NANOX_DIRECT_FB
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48 if (Clientfb) {
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49 if (currently_fullscreen)
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50 dest = fbinfo.winpixels + (((y+OffsetY) * fbinfo.pitch) +
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51 ((x+OffsetX) * fbinfo.bytespp));
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52 else
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53 dest = fbinfo.winpixels + ((y * fbinfo.pitch) + (x * fbinfo.bytespp));
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54 destinc = fbinfo.pitch;
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55 }
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56 else
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57 #endif
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58 {
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59 dest = Image_buff ;
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60 destinc = w * xinc ;
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61 }
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62 rowinc = w * xinc;
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63
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64 // apply GammaRamp table
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65 if ((pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888)
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66 && GammaRamp_R && GammaRamp_G && GammaRamp_B) {
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67 Uint8 * ptrsrc ;
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68 Uint8 * ptrdst ;
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69 int k ;
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70
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71 for (j = h; j > 0; -- j, src += yinc, dest += destinc) {
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72 ptrsrc = src ;
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73 ptrdst = dest ;
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74 for (k = w; k > 0; -- k) {
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75 *ptrdst++ = GammaRamp_B [*ptrsrc++] >> 8;
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76 *ptrdst++ = GammaRamp_G [*ptrsrc++] >> 8;
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77 *ptrdst++ = GammaRamp_R [*ptrsrc++] >> 8;
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78 *ptrdst++ = 0;
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79 ++ptrsrc;
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80 }
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81 }
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82 }
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83 #if 1 /* This is needed for microwindows 0.90 or older */
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84 else if (pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) {
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85 Uint8 * ptrsrc ;
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86 Uint8 * ptrdst ;
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87 int k ;
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88
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89 for (j = h; j > 0; -- j, src += yinc, dest += destinc) {
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90 ptrsrc = src ;
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91 ptrdst = dest ;
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92 for (k = w; k > 0; -- k) {
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93 *ptrdst++ = *ptrsrc++;
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94 *ptrdst++ = *ptrsrc++;
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95 *ptrdst++ = *ptrsrc++;
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96 *ptrdst++ = 0;
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97 ++ptrsrc;
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98 }
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99 }
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100 }
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101 #endif
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102 else
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103 {
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104 for (j = h; j > 0; -- j, src += yinc, dest += destinc)
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105 SDL_memcpy (dest, src, rowinc) ;
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106 }
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107 if (!Clientfb) {
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108 if (currently_fullscreen) {
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109 GrArea (FSwindow, SDL_GC, x + OffsetX, y + OffsetY, w, h, Image_buff,
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110 pixel_type) ;
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111 } else {
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112 GrArea (SDL_Window, SDL_GC, x, y, w, h, Image_buff, pixel_type) ;
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113 }
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114 }
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115 }
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116 GrFlush();
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117
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118 Dprintf ("leave NX_NormalUpdate\n") ;
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119 }
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120
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121 int NX_SetupImage (_THIS, SDL_Surface * screen)
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122 {
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123 int size = screen -> h * screen -> pitch ;
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124
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125 Dprintf ("enter NX_SetupImage\n") ;
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126
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127 screen -> pixels = (void *) SDL_malloc (size) ;
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128
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129 if (!Clientfb) {
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130 Image_buff = (unsigned char *) SDL_malloc (size) ;
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131 if (screen -> pixels == NULL || Image_buff == NULL) {
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132 SDL_free (screen -> pixels) ;
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133 SDL_free (Image_buff) ;
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134 SDL_OutOfMemory () ;
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135 return -1 ;
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136 }
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137 }
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138
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139 SDL_Image = (unsigned char *) screen -> pixels ;
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140
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141 this -> UpdateRects = NX_NormalUpdate ;
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142
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143 Dprintf ("leave NX_SetupImage\n") ;
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144 return 0 ;
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145 }
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146
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147 void NX_DestroyImage (_THIS, SDL_Surface * screen)
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148 {
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149 Dprintf ("enter NX_DestroyImage\n") ;
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150
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151 if (SDL_Image) SDL_free (SDL_Image) ;
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152 if (Image_buff) SDL_free (Image_buff) ;
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153 if (screen) screen -> pixels = NULL ;
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154
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155 Dprintf ("leave NX_DestroyImage\n") ;
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156 }
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157
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158 int NX_ResizeImage (_THIS, SDL_Surface * screen, Uint32 flags)
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159 {
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160 int retval ;
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161 GR_SCREEN_INFO si ;
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162
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163 Dprintf ("enter NX_ResizeImage\n") ;
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164
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165 NX_DestroyImage (this, screen) ;
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166 retval = NX_SetupImage (this, screen) ;
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167
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168 GrGetScreenInfo (& si) ;
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169 OffsetX = (si.cols - screen -> w) / 2 ;
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170 OffsetY = (si.rows - screen -> h) / 2 ;
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171
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172 #ifdef ENABLE_NANOX_DIRECT_FB
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173 if (Clientfb) {
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174 /* Get current window position and fb pointer*/
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175 if (currently_fullscreen)
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176 GrGetWindowFBInfo(FSwindow, &fbinfo);
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177 else
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178 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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179 }
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180 #endif
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181 Dprintf ("leave NX_ResizeImage\n") ;
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182 return retval ;
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183 }
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184
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185 void NX_RefreshDisplay (_THIS)
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186 {
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187 Dprintf ("enter NX_RefreshDisplay\n") ;
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188
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189 // Don't refresh a display that doesn't have an image (like GL)
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190 if (! SDL_Image) {
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191 return;
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192 }
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193
471
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194 #ifdef ENABLE_NANOX_DIRECT_FB
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195 if (Clientfb) {
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196 int j;
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197 char *src, *dest = NULL;
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198 int xinc, yinc, rowinc;
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199
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200 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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201
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202 xinc = this -> screen -> format -> BytesPerPixel ;
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203 yinc = this -> screen -> pitch ;
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204
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205 src = SDL_Image;
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206 if (currently_fullscreen)
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207 dest = fbinfo.winpixels + ((OffsetY * fbinfo.pitch) +
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208 (OffsetX * fbinfo.bytespp));
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209 else
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210 dest = fbinfo.winpixels;
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211 rowinc = xinc * this -> screen -> w;
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212
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213 for (j = this -> screen -> h; j > 0; -- j, src += yinc, dest += fbinfo.pitch)
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214 SDL_memcpy (dest, src, rowinc) ;
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215 }
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216 else
471
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217 #endif
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218 {
471
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219 if (currently_fullscreen) {
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220 GrArea (FSwindow, SDL_GC, OffsetX, OffsetY, this -> screen -> w,
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221 this -> screen -> h, SDL_Image, pixel_type) ;
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222 } else {
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223 GrArea (SDL_Window, SDL_GC, 0, 0, this -> screen -> w,
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224 this -> screen -> h, SDL_Image, pixel_type) ;
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225 }
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226 }
471
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227 GrFlush();
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228
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229 Dprintf ("leave NX_RefreshDisplay\n") ;
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230 }